Strong D* → Dπ and B* → Bπ couplings
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevC.83.025205 http://hdl.handle.net/11449/226261 |
Resumo: | We compute gD*Dπ and gB*Bπ using a framework in which all elements are constrained by Dyson-Schwinger equation studies of QCD and therefore incorporates a consistent, direct, and simultaneous description of light and heavy quarks and the states they may constitute. We link these couplings with the heavy-light-meson leptonic decay constants and thereby obtain gD*Dπ=15.9-1.0+2.1 and g B*Bπ=30.0-1.4+3.2. From the latter, we infer ǧB=0.37-0.02+0.04. A comparison between g D*Dπ and gB*Bπ indicates that when the c quark is a system's heaviest constituent, ΛQCD/m c-corrections are not under good control. © 2011 American Physical Society. |
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Strong D* → Dπ and B* → Bπ couplingsWe compute gD*Dπ and gB*Bπ using a framework in which all elements are constrained by Dyson-Schwinger equation studies of QCD and therefore incorporates a consistent, direct, and simultaneous description of light and heavy quarks and the states they may constitute. We link these couplings with the heavy-light-meson leptonic decay constants and thereby obtain gD*Dπ=15.9-1.0+2.1 and g B*Bπ=30.0-1.4+3.2. From the latter, we infer ǧB=0.37-0.02+0.04. A comparison between g D*Dπ and gB*Bπ indicates that when the c quark is a system's heaviest constituent, ΛQCD/m c-corrections are not under good control. © 2011 American Physical Society.Laboratório de Física Teórica e Computaç ão Científica Universidade Cruzeiro do Sul, Rua Galvão Bueno, 868, 01506-000 São Paulo, São PauloInstituto de Física Teórica Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz, 271, 01140-070 São Paulo, São PauloKavli Institute for Theoretical Physics China Chinese Academy of Science, Beijing 100190Bogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear Research, 141980 DubnaPhysics Division Argonne National Laboratory, Argonne, IL 60439Department of Physics Peking University, Beijing 100871Instituto de Física Teórica Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz, 271, 01140-070 São Paulo, São PauloUniversidade Cruzeiro do SulUniversidade Estadual Paulista (UNESP)Chinese Academy of ScienceJoint Institute for Nuclear ResearchArgonne National LaboratoryPeking UniversityEl-Bennich, Bruno [UNESP]Ivanov, Mikhail A.Roberts, Craig D.2022-04-28T22:13:56Z2022-04-28T22:13:56Z2011-02-14info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevC.83.025205Physical Review C - Nuclear Physics, v. 83, n. 2, 2011.1089-490X0556-2813http://hdl.handle.net/11449/22626110.1103/PhysRevC.83.0252052-s2.0-79952318750Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review C - Nuclear Physicsinfo:eu-repo/semantics/openAccess2022-04-28T22:13:56Zoai:repositorio.unesp.br:11449/226261Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:53:06.803061Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Strong D* → Dπ and B* → Bπ couplings |
title |
Strong D* → Dπ and B* → Bπ couplings |
spellingShingle |
Strong D* → Dπ and B* → Bπ couplings El-Bennich, Bruno [UNESP] |
title_short |
Strong D* → Dπ and B* → Bπ couplings |
title_full |
Strong D* → Dπ and B* → Bπ couplings |
title_fullStr |
Strong D* → Dπ and B* → Bπ couplings |
title_full_unstemmed |
Strong D* → Dπ and B* → Bπ couplings |
title_sort |
Strong D* → Dπ and B* → Bπ couplings |
author |
El-Bennich, Bruno [UNESP] |
author_facet |
El-Bennich, Bruno [UNESP] Ivanov, Mikhail A. Roberts, Craig D. |
author_role |
author |
author2 |
Ivanov, Mikhail A. Roberts, Craig D. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Cruzeiro do Sul Universidade Estadual Paulista (UNESP) Chinese Academy of Science Joint Institute for Nuclear Research Argonne National Laboratory Peking University |
dc.contributor.author.fl_str_mv |
El-Bennich, Bruno [UNESP] Ivanov, Mikhail A. Roberts, Craig D. |
description |
We compute gD*Dπ and gB*Bπ using a framework in which all elements are constrained by Dyson-Schwinger equation studies of QCD and therefore incorporates a consistent, direct, and simultaneous description of light and heavy quarks and the states they may constitute. We link these couplings with the heavy-light-meson leptonic decay constants and thereby obtain gD*Dπ=15.9-1.0+2.1 and g B*Bπ=30.0-1.4+3.2. From the latter, we infer ǧB=0.37-0.02+0.04. A comparison between g D*Dπ and gB*Bπ indicates that when the c quark is a system's heaviest constituent, ΛQCD/m c-corrections are not under good control. © 2011 American Physical Society. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-02-14 2022-04-28T22:13:56Z 2022-04-28T22:13:56Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1103/PhysRevC.83.025205 Physical Review C - Nuclear Physics, v. 83, n. 2, 2011. 1089-490X 0556-2813 http://hdl.handle.net/11449/226261 10.1103/PhysRevC.83.025205 2-s2.0-79952318750 |
url |
http://dx.doi.org/10.1103/PhysRevC.83.025205 http://hdl.handle.net/11449/226261 |
identifier_str_mv |
Physical Review C - Nuclear Physics, v. 83, n. 2, 2011. 1089-490X 0556-2813 10.1103/PhysRevC.83.025205 2-s2.0-79952318750 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review C - Nuclear Physics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128870502629376 |